tumabbrev.sty

\RequirePackage{xspace}

\newcommand{\xperiod}[1]{%
  \@ifnextchar{.}
    {\textit{et\,al}}
    {\textit{et\,al}\,}%
}

\newcommand{\ia}{\textit{i{.}a{.}}, }
\newcommand{\ie}{\textit{i{.}e{.}}, }
\newcommand{\eg}{\textit{e{.}g{.}}, }
\newcommand{\cf}{\textit{cf{.}}\,}
\newcommand{\vs}{\textit{vs{.}}\,}
\newcommand{\wrt}{wrt.{}\,}
\newcommand{\iid}{iid.}

\makeatletter
\newcommand*{\etc}{%
  \@ifnextchar{.}
    {\textit{etc}}
    {\@ifnextchar{,}
      {\textit{etc}.}
      {\textit{etc}.\,}}%
}
\newcommand*{\etal}{%
  \@ifnextchar{.}
    {\textit{et\,al}}
    {\@ifnextchar{,}
      {\textit{et\,al}.}
      {\textit{et\,al}.\,}}%
}
\makeatother